Me and Science
I became interested in the physics of light during my study at the Technische Universität Hamburg-Harburg (TUHH), Hamburg, Germany. There I was involved with light propagation and localization in photonic crystals waveguide and cavity. Since then my work has been in the field of optics (2D and 3D PhCs), branching out into plasmonic and metamaterials, and most recently into thermoelectric materials. Below you will find some of my work.
Peer-reviewed Journals
2012
[15] Background-free imaging of plasmonic structures with cross-polarized apertureless scanning near-field optical microscopy
M. Eßlinger, J. Dorfmüller, W. Khunsin. R. Vogelgesng, and K. Kern
(submitted)
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[14] Noise-assisted crystallization of opal films
W. Khunsin, A. Amann, G. Kocher, S. G. Romanov,
S. Pullteap, H. C. Seat,
E. P. O'Reilly,
R. Zentel
and C. M. Sotomayor Torres
Adv. Funct. Mater. Accepted (2012),
doi: N.A.
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[13] Plasmonic grating as a nonlinear converter-coupler
N. Talebi, M. Shahabadi, W. Khunsin, and R. Vogelgesang
Opt. Express 20, 1392-1405 (2012), doi: 10.1364/OE.20.001392
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2011
[12] Near-field dynamics of optical Yagi-Uda nanoantennas
J. Dorfmüller, D. Dregely, M. Eßlinger, W. Khunsin, R. Vogelgesang, K. Kern, and H. Giessen
Nano Lett. 11, 2819-2824 (2011), doi: 10.1021/nl201184n
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[11] Long-distance Indirect excitation of plasmonic resonance
W. Khunsin, B. Brian, J. Dorfmüller, M. Esslinger, R. Vogelgesang,
C. Rockstuhl,
D. Dmitriev, K. Kern.
Nano. Lett. 11, 27665-2769 (2011), doi: 10.1021/nl201043v
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2010
[10] Plasmonic Nanowire Antennas: Experiment, Simulation and Theory
J. Dorfmüller, R. Vogelgesang, W. Khunsin, C. Rockstuhl, C. Etrich, and K. Kern
Nano Lett. 10, 2596-2603 (2010), doi: 10.1021/nl101921y
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2009
[9] Site-selective self-assemly of Colloidal Photonic Crystals
S. Arpiainen, F. Jonsson, J. R. Dekker, G. Kocher, W. Khunsin,
C. M. Sotomayor Torres, and J. Ahopelto
Adv. Funct. Mater. (2009), doi: 10.1002/adfm.200801612
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[8] Resonance amplification of defect emission in ZnO-inverted opal
W. Khunsin, M. Scharrer, L. K. Aagesen, M. A. Anderson, R. P. H. Chang,
C. M. Sotomayor Torres, and S. G. Romanov
Opt. Lett. 34, 1519-1521 (2009), doi: 10.1364/OL.34.001519
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2008
[7] Bleaching-induced evolutio of directional emission from dye-loaded opals
W. Khunsin, S. G. Romanov, M. Bardosova, D. Whitehead, M. Pemble,
I. M. Povey, and C. M. Sotomayor Torres
J. Opt. A: Pure Appl. Opt. 10, 115201 (2008), doi:10.1088/1464-4258/10/11/115201
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[6] Optical transmission in triple-film hetero-opals
W. Khunsin, S. G. Romanov, C. M. Sotomayor Torres, J. Ye, and R. Zentel
J. Appl. Phys. 104, 013527 (2008), doi: 10.1063/1.2951958
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[5] Quantitative analysis of lattice ordering in thin film
opal-based photonic crystals
W. Khunsin, G. Kocher, S. G. Romanov, and C. M. Sotomayor Torres
Adv. Funct. Mater. 18, 1-9 (2008), doi: 10.1002/adfm.200701431
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[4] Rotational symmetry of transmission patterns and ordering of
opal photonic crystals
W. Khunsin, S. G. Romanov, and C. M. Sotomayor Torres
J. Non. Opt. Phys. Mater. 17, 97-104 (2008), doi: 10.1142/S0218863508004020
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[3] Chemosorption-related shift of a photonic bandgap in
photoconductive
ZnO inverse opal
W. Khunsin, S. G. Romanov, M. Scharrer, L. K. Aagesen,
R. P. H. Chang, and C. M. Sotomayor Torres
Opt. Lett. 33, 461-463 (2008), doi: 10.1364/OL.33.000461
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2007
[2] Integration of SOI-based 2D and Si-based 3D photonic crystals
G. Kocher, W. Khunsin, J. Romero Vivas, K. Vynck, S. Arpiainen, S. G. Romanov, B. Lange, M. Mulot, F. Jonsson, T. Charvolin, E. Hajdi, D. Cassagne, R. Zentel,
J. Ahopelto, and C. M. Sotomayor Torres
ECS Transaction 6, 133-138 (2007), doi: 10.1149/1.2728851
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[1] Towards Si-based photonic circuits: Integrating photonic crystals
in silicon-on-insulator platforms
G. Kocher, W. Khunsin, S. Arpiainen, J. Romero-Vivas, S. G. Romanov, J. Ye, B. Lange,
F. Jonsson, R. Zentel, J. Ahopelto, and C. M. Sotomayor Torres
Sol. Stat. Electron. 51, 333-336 (2007), doi: 10.1016/j.sse.2007.01.010
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Conference Proceedings
P9 W. Khunsin, J. Dorfmüller, M. Esslinger, R. Vogelgesang, C. Rockstuhl, C. Etrich, F. Lederer, H. Giessen, and K. Kern
Glimpsing non-radiative plasmonic dark modes in the near field: exciting the unexcitable
Proceeding of the 5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2011, 5, 48.
P8 [Invited] R. Vogelgesang, W. Khunsin, B. Brian, J. Dorfmüller, M. Eßlinger, C. Etrich, C. Rockstuhl, A. Dmitriev, and K. Kern
Apertureless near-field optical microscopy investigations of long-range indirect interactions in unordered metamaterials
Proceeding of the 5th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2011, 27, 639.
P7 S. G. Romanov, U. Peschel, W. Khunsin, S. Essig, and K. Busch
Polarization anisotropy and cross-polarized transmission in thin film opal-based photonic crystals
Proc. SPIE 2010, 7713, 771304.
P6 [Invited] C. Rockstuhl, C. Etrich, C. Helgert, C. Menzel, T. Paul, S. Fahr, T. Pertsch, J. Dorfmüller, R. Esteban, W. Khunsin, R. Vogelgesang, K. Kern, A. Dmitriev, K. Bittkau, T. Beckers, R. Carius, and F. Lederer
Large scale simulations in the realm of nanooptics
Proc. SPIE 2010, 7604, 76040D.
P5 W. Khunsin, C. M. Sotomayor Torres, and S. G. Romanov
Approaching quantitative optical diffraction analysis of crystal lattices in opal films
Proc. SPIE 2008, 6989, 69890K.
P4 [Invited] W. Khunsin, P. Lovera, G. Redmond, C. M. Sotomayor Torres, M. Scharrer, L. Aagesen, R. P. H. Chang, and S. G. Romanov
Excitation-power dependence of luminescence in ZnO inverted opals with structural defects
Proc. SPIE 2008, 6989, 69890R.
P3 W. Khunsin, G. Kocher, S. G. Romanov, and C. M. Sotomayor Torres
Improving the opal-based photonic crystals by noise-assisted crystallization
Proc. SPIE 2008, 6793, 67930B.
P2 A. Amann, W. Khunsin, G. Kocher, C. M. Sotomayor Torres, and E. P. O’Reilly
Stochastic Resonance in Photonic Crystal Growth
Proc. SPIE. 2007, 6603, 660321.
P1 G. Kocher, W. Khunsin, S. G. Romanov, K. Vynck, S. Arpiainen, B. Lange, J. Ye F. Jonsson, D. Cassagne, R. Zentel, J. Ahopelto, C. M. Sotomayor Torres
2D Photonic Defect Layers in 3D Inverted Opals on Si Platforms
Proc. IEEE ICTON. 2006, 2, 68.
Conference Presentations
Talks
Posters
